JP2011014341A - Lighting system capable of light control - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting system which can change the illuminance and color temperature according to each scene, such as, desk work, conference, meeting, and break as experienced in intellectual creative activities in an office and realizes an office lighting environment that enables efficiently the intellectual creative activity, while attaining energy saving.SOLUTION: The lighting system is provided with a lighting device, capable of changing illuminance and color temperature, and a control device which can input a set value of illuminance and color temperature and controls the lighting device based on the stored set value, and can change the illuminance and color temperature of the lighting device, according to the use scene or a time band of the office. In the control device, a plurality of basic modes, including at least a conference production mode are set beforehand, and the conference production mode, is provided with a brisk conference mode with both high color temperature and high illuminance; a lively conference mode with low color temperature and high illuminance; and a quiet conference mode, with both low color temperature and low illuminance, and each mode can be switched over according to the content of the conference.

Description

  The present invention relates to a lighting system capable of dimming, and more particularly to a lighting system in which illuminance and color temperature can be changed according to a use scene.

  Conventionally, various lighting devices using LEDs (light emitting diodes) have been proposed. For example, in Patent Document 1, a plurality of the light emitting element arrays are provided, and the light emitting element array is configured by a first color LED array, a second color LED array, and a third color LED array. An illumination device is described that is configured to be continuously variable while interlocking the total luminous flux emitted from these light emitting element arrays and the color temperature of all emitted light by changing the mixing ratio of the light from the array. Yes.

  Patent Document 2 discloses a plurality of light sources having different emission colors, a plurality of lighting circuit units that individually turn on the plurality of light sources, and a plurality of lighting circuit units, by controlling the plurality of lighting circuit units. And a controller that continuously changes the total luminous flux emitted from the light source and the color temperature of the total emitted light. Here, it is assumed that the control unit continuously changes the color temperature of the total luminous flux and the total emitted light in conjunction with a control curve or a straight line derived by sensory evaluation regarding changes in illuminance and color temperature. . Further, it is disclosed that an incandescent bulb, a ring fluorescent lamp, a straight tube fluorescent lamp, a light emitting diode, or an assembly of light emitting diodes is used as a light source.

  Furthermore, as an illumination technique capable of adjusting the illuminance and the color temperature using the LED, Patent Document 3 discloses a photo studio apparatus, Patent Document 4 discloses a range hood, and Patent Document 5 discloses a washstand. ing.

JP 2006-100036 A JP 2004-095369 A JP 2006-317751 A JP 2007-078223 A JP 2008-259660 A

  However, all of the lighting devices described in the patent documents are provided with hardware capable of adjusting the illuminance and the color temperature, and the software aspects such as how to actually adjust are neglected. Yes. In other words, when the illuminance and color temperature are adjusted to dark clouds, the setting becomes slightly different each time it is adjusted, and a comfortable office lighting environment cannot always be realized.

  Therefore, in view of the situation described above, the present invention intends to solve the problem that the illuminance and the color temperature can be changed according to the scenes such as desk work, conference, meeting, break, etc. experienced in the intellectual creation activity in the office. The objective is to provide a lighting system that can save energy while realizing an office lighting environment that enables efficient creative activities.

  In order to solve the above-described problems, the present invention can input an illumination device capable of changing illuminance and color temperature, and set values of illuminance and color temperature, and controls the illumination device based on the stored setting values. A dimmable lighting system comprising a control device, wherein the illuminance and the color temperature of the lighting device can be changed according to an office use scene or a time zone (claim 1).

  Here, it is preferable that a plurality of basic modes including at least a conference effect mode are set in advance in the control device so that the basic modes can be switched (claim 2).

  Further, the conference effect mode includes a “pakipaki” conference mode in which both color temperature and illuminance are high, a “live” conference mode in which color temperature is low and illuminance is high, and a “yuttari” conference mode in which both color temperature and illuminance are low. It is possible to switch between the modes according to the contents of the conference (claim 3).

  The illuminance adjustment range is 200 to 2000 (lx), the color temperature adjustment range is 2800 to 5000 (K), and the boundary between the low and high color temperature ranges is 4000 ± 250 (K). The boundary between the low illuminance range and the high illuminance range is preferably set to 1000 ± 200 (lx).

  In each conference mode of the conference effect mode, it is more preferable to be able to input a set value of color temperature, a center value of illuminance, and a set value of illuminance change width.

  The lighting system capable of dimming according to the invention according to claim 1 as described above is based on the stored setting value, the lighting device capable of changing the illuminance and the color temperature, and the setting values of the illuminance and the color temperature can be input respectively. A control device for controlling the lighting device, and the illuminance and color temperature of the lighting device can be changed according to the use scene or time zone of the office. The illuminance and color temperature can be changed according to scenes such as meetings and breaks, so that an office lighting environment in which intellectual creation activities can be efficiently performed can be realized and energy saving can be achieved.

  According to the second aspect, the control device is preset with a plurality of basic modes including at least the conference effect mode, and can switch between the basic modes. By selecting the preset basic mode, The light can be easily adjusted to the color temperature and illuminance suitable for the usage scene.

  According to a third aspect of the present invention, the conference effect mode includes a “pakipaki” conference mode in which both color temperature and illuminance are high, an “exciting” conference mode in which color temperature is low and high illuminance, and both color temperature and illuminance are low. “Yuttari” conference mode, which can be switched according to the content of the conference, so it is possible to switch the conference mode according to the type of conference and the degree of progress of the conference, the optimal color temperature and efficient intellectual creation activities It can be dimmed to illuminance.

  According to claim 4, by setting the adjustment range of the color temperature and illuminance, and setting the boundary between the low range and the high range of the color temperature and illuminance in advance, the characteristics of each conference mode become clear and efficient. In addition to performing intellectual creation activities, it is possible to save energy by suppressing unnecessary power consumption.

  According to claim 5, in each conference mode of the conference effect mode, it is possible to input a set value of color temperature, a center value of illuminance, and a set value of illuminance change width. And the optimal illumination can be realized by finely adjusting the illuminance with reference to the center value of the illuminance.

It is explanatory drawing which shows the characteristic range with respect to illumination intensity and color temperature, and the result of sensory evaluation. It is a graph which shows the value of the illumination intensity and color temperature which performed sensory evaluation. It is explanatory drawing which shows the display screen of a main menu. It is explanatory drawing which shows the display screen of meeting mode selection in meeting production mode. It is explanatory drawing which shows the display screen of the administrator main menu for setting illumination intensity and color temperature. It is explanatory drawing which shows the display screen of each meeting mode setting. It is explanatory drawing which shows the setting screen of the "ikiki" meeting mode in meeting mode. It is explanatory drawing which shows the screen in mode execution displayed when the test button of "Ikiiki" meeting mode in meeting mode is pushed. It is explanatory drawing which shows the setting screen in time linked mode. It is explanatory drawing which shows the setting screen in circadian mode. It is explanatory drawing which graphed the setting value of circadian mode. It is explanatory drawing which shows the output screen of the log which recorded the light control result on the enemy over time.

  Next, the present invention will be described in more detail based on the embodiments shown in the accompanying drawings. The present invention includes a lighting device that can change illuminance and color temperature, and a control device that can input setting values of illuminance and color temperature and controls the lighting device based on the stored setting values. The illuminating device combines an LED, a fluorescent lamp, and an EL panel, and can change the illuminance and the color temperature. The control device includes an input unit, a storage unit, a calculation unit, and a display unit, and can be constituted by a personal computer. The display unit may be a touch panel that also serves as an input unit.

  In the present invention, the illuminance adjustment range is 200 to 2000 (lx), and the color temperature adjustment range is 2800 to 5000 (K). K is the absolute temperature.

Here, illuminance is the density of light flux on a certain surface, and is expressed in lux (lx) in the international unit system. The luminous flux is the speed of flow of radiant energy evaluated by visual sensitivity, and is measured in lumens (lm). Therefore, lx = lm / m ² . Generally, it can measure with a commercially available luminometer.

  On the other hand, the color temperature is the temperature of a black body that emits radiant energy having the same spectral distribution as the radiant energy from the surface of the solid. In other words, the color temperature corresponds to the color of light to be expressed with the color of light emitted from a black body at a certain temperature, and the temperature of the black body at that time is used as the color temperature. Specifically, the spectral distribution of radiation and the temperature of the black body are associated with Planck's radiation equation. For example, the color temperature of the morning sun and sunset is about 2000 (K), and ordinary sun rays are about 5000 to 6000 (K). Generally, it can measure with a commercially available color thermometer.

  Then, in the color temperature-illuminance space where the color temperature is the X axis and the illuminance is the Y axis, LL, LH, HL based on the low range L and high range H, and the low range L and high range H of color temperature. , HH are defined. Here, for example, LH indicates a region having a low color temperature and a high illuminance. When the boundary between the low and high color temperature ranges is about 4000 (K), and the boundary between the low and high illuminance ranges is about 1000 (lx), as shown in FIG. Easy to classify. However, there should be no clear change before and after these boundaries, and each should have a width of about 500 (K) for color temperature and a width of about 400 (lx) for illuminance.

  FIG. 1 shows the results of sensory evaluation in four regions, and each region is characterized as follows. LL is defined as a “Yutari” area because it has been evaluated as “Relaxed. Feeling relaxed in time. Loose. Reluctant.” In addition, LH is defined as an “exciting” area because it has been evaluated as “concentrate on work. Easy to exchange opinions. Easy to speak. HH has been evaluated as “Pakipaki” because it has been evaluated as “Easy to exchange opinions. Feeling impatient. Not very comfortable”. Since HL is an evaluation such as “No feature. (Movement is dull. Slack.)”, It is not used in the present invention. The color temperature and illuminance values actually subjected to sensory evaluation are shown in FIG.

  FIG. 3 shows the main menu. In the present embodiment, there are three basic modes: a conference effect mode, a time interlocking mode, and a circadian mode. The conference presentation mode is a mode for controlling the lighting in accordance with the purpose of the conference. As shown in FIG. 4, there are three sub-modes of “Ikiiki” conference mode, “Pakipaki” conference mode, and “Yutari” conference mode. The time interlocking mode is a mode in which time is set and three sub modes are changed. The circadian mode is a mode that reproduces the natural light of that time.

  The main menu includes a button for switching to an administrator screen for various settings and a system end button. When the conference presentation mode in the main menu is pressed (clicked), the conference mode selection screen shown in FIG. 4 is displayed, and buttons “Ikiiki”, “Pakipaki”, and “Utari” are displayed. As described above, the “lively” conference mode is suitable for gathering quickly and actively discussing and sharing ideas. The “Pakipaki” conference mode is suitable for deliberately fighting discussions and sharing ideas at certain times under moderate pressure. The “Yuttari” conference mode is suitable for meetings where people have time to relax and talk about their real intentions.

  When the “go to administrator screen” button in the main menu is pressed, an administrator main menu screen as shown in FIG. 5 is displayed. This administrator main menu includes menus such as conference production mode setting, circadian mode setting, log, password setting and the like. When the conference production mode setting button is pressed, a screen for setting each conference mode as shown in FIG. 6 is opened. When the “Ikiiki” setting, “Pakipaki” setting, “Yutari” setting button is pressed, the illuminance of each conference mode is set. The color temperature can be set. For example, when the “Iki Iki” setting button is pressed, an “Iki Iki” setting screen as shown in FIG. 7 is displayed, and the illuminance and color temperature can be set by numerical values.

  Specifically, on the “Ikiiki” setting screen, there are a box 1 for inputting a standard illuminance value (a central value of illuminance) and a box 2 for inputting an illuminance change value. Each box has a predetermined range. Enter a value in to set the illuminance. There is also a box 3 for inputting a color temperature, and a numerical value is input to the box 3 within a predetermined range to set the color temperature. The “Ikiiki” setting screen has a button for saving the setting and a test button. When the test button is pressed, the lighting device operates with the actually set illuminance and color temperature, and the setting can be confirmed.

  FIG. 8 is a screen during execution of the exciting mode. In this embodiment, the illuminance of the center illumination can be finely adjusted within the illuminance change value set by moving the knob. In addition, ambient lighting and a switch for turning on / off the effect light are also displayed, and can be used in combination with center lighting as appropriate.

  On the other hand, when the time-linked mode button in the main menu is pressed, as shown in FIG. 9, a screen for selecting and setting a conference mode for each passage of time opens. By inputting and setting the duration and setting them in order, the lighting device is driven in the conference mode and duration set as time passes.

  In addition, when the circadian mode setting button is pressed on the above-mentioned administrator main menu screen, the circadian mode setting screen as shown in FIG. 10 is opened, and the illuminance and color temperature are independently set for each time for the center lighting and ambient lighting. It can be set. In the present embodiment, the illuminance and the color temperature can be set on the time axis every 30 minutes. The setting screen includes an illuminance input box 4 and a color temperature input box 5 for the center illumination, and an illuminance input box 6 and a color temperature input box 7 for the ambient illumination. Further, an input box 8 for change in illuminance is provided in the same manner as described above. When the continuous test button is pressed, the setting state can be confirmed by driving the lighting device while shortening the time axis with the set illuminance and color temperature.

  The actually set circadian mode illumination conditions can be displayed in a graph as shown in FIG. In the circadian mode lighting condition setting screen of FIG. 11, the horizontal axis is the time axis, the vertical axis is the illuminance on the left, the color temperature scale is displayed on the right, and the time course of illuminance and color temperature is displayed in a line graph. is doing.

  FIG. 12 shows a log of an operating lighting system, which is used for data for realizing optimal dimming and is used for managing defects.

1 Standard illumination input box 2 Illuminance change value input box 3 Color temperature input box 4 Center illumination illumination input box 5 Center illumination color temperature input box 6 Ambient illumination illumination input box 7 Ambient illumination color temperature Input box 8 Illumination change value input box

Claims (5)

  Illumination device that can change illuminance and color temperature, and a control device that can input set values of illuminance and color temperature and control the illumination device based on the stored setting values, and is used in an office scene or time A dimmable lighting system characterized in that the illuminance and color temperature of the lighting device can be changed according to the belt.   The dimmable lighting system according to claim 1, wherein a plurality of basic modes including at least a conference effect mode are preset in the control device, and each basic mode can be switched.   The conference presentation mode includes a “pakipaki” conference mode in which both color temperature and illuminance are high, a “quick” conference mode in which color temperature is low and illuminance is high, and a “yuttari” conference mode in which both color temperature and illuminance are low, The dimmable lighting system according to claim 1, wherein each mode can be switched according to the contents of the meeting.   The illuminance adjustment range is 200 to 2000 (lx), the color temperature adjustment range is 2800 to 5000 (K), and the boundary between the low and high color temperature ranges is 4000 ± 250 (K). The dimmable lighting system according to claim 3, wherein a boundary between the low range and the high range is 1000 ± 200 (lx). The dimmable lighting system according to claim 3 or 4, wherein a setting value of a color temperature, a center value of illuminance, and a setting value of illuminance change width can be input in each conference mode of the conference effect mode.

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